c连MySQL ,insert后数据乱码了

Question

:~> mysql -u zhongyi -p
Enter password:
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 22 to server version: 5.1.12-betaType 'help;' or '\h' for help. Type '\c' to clear the buffer.mysql> use ZhongYi
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -ADatabase changed
mysql> describe zy;
[code]
+--------+--------------------------+------+-----+---------+----------------+
 | Field    | Type                         | Null  | Key  | Default | Extra            |
+--------+--------------------------+------+-----+---------+----------------+
| xuhao  | int(5) unsigned zerofill  | NO   | PRI | NULL    | auto_increment |
| fenqu   | char(30)                   | YES   |       | NULL    |                     |
| bianma | int(6) unsigned zerofill | YES   |       | NULL    |                     |
| liexin    | char(30)                   | YES   |       | NULL    |                     |
| weizhi   | char(30)                   | YES   |       | NULL    |                    |
+--------+--------------------------+------+-----+---------+----------------+
[/code]
5 rows in set (0.15 sec)
 cat 中宜编程资料.doc
[code]
001     第一分区        01001   光电感烟        二层东后区
002     第一分区        01002   光电感烟        二层东后区.................................
[/code][code]
 file 中宜编程资料.doc
中宜编程资料.doc: ISO-8859 text
[/code]
main.c
[code]
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
//#include <sys/iconv.h>
//#include "/usr/src/sys/sys/iconv.h"
#include "/usr/src/bin/csh/iconv.h"
#include "/usr/local/include/mysql/mysql.h"int
main(int argc,char **argv)
{
    MYSQL           mysql;
    FILE            *fp;    if( 2 != argc ){
        fprintf(stderr,"Usage:./prog inputfile\n");
        exit(-1);
    }    if( NULL == (fp=fopen(argv[1],"r")) ){
        fprintf(stderr,"%s\n",strerror(errno));
        exit(-1);
    }
    fprintf(stdout,"file %s opend...\n",argv[1]);    mysql_init(&mysql);
    if(NULL==mysql_real_connect(&mysql,"localhost","zhongyi","localhost","ZhongYi",0,NULL,0)){
        fprintf(stderr,"Failed to connect to database: Error: %s\n",mysql_error(&mysql));
        exit(-1);
    }
    fprintf(stdout,"DataBase Connected...\n");    /*  --------------------------------- */
    /*  021     第一分区    010021  光电感烟    一层东后区 */
    for(char buf[4096]; NULL != fgets(buf,4096,fp); ){
        /*
         * | fenqu  | char(30)
         * | bianma | int(6) unsigned zerofill
         * | liexin | char(30)
         * | weizhi | char(30)
         */
        char query[1024]="INSERT INTO zy(fenqu,bianma,liexin,weizhi) VALUES('";
        char *iter_b,*iter_e;        for(iter_b=buf; 0 < *iter_b; ++iter_b);
        for(iter_e=iter_b; 0 > *iter_e; iter_e+=2);
        strncat(query,iter_b,iter_e-iter_b);
        strcat(query,"',");
        for(iter_b=iter_e; ' '==*iter_b; ++iter_b);
        for(iter_e=iter_b; ' '!=*iter_e; ++iter_e);
        strncat(query,iter_b,iter_e-iter_b);
        strcat(query,",'");
        for(iter_b=iter_e; 0 < *iter_b; ++iter_b);
        for(iter_e=iter_b; 0 > *iter_e; iter_e+=2);
        strncat(query,iter_b,iter_e-iter_b);
        strcat(query,"','");
        for(iter_b=iter_e; 0 < *iter_b; ++iter_b);
        for(iter_e=iter_b; 0 > *iter_e; iter_e+=2);
        strncat(query,iter_b,iter_e-iter_b);
        strcat(query,"')");        /*  iconv */
        iconv_t   cd;
        char outbuf[1024];
        size_t in=strlen(query),out=1024;        if( (iconv_t)-1 == (cd = iconv_open("UTF-8","GBK")) ){
            fprintf(stderr,"Iconv_open Error: %s\n",strerror(errno));
            exit(-1);
        }
        if( (size_t)-1 == iconv(cd,(char **)&query,(size_t *)&in,(char **)&outbuf,(size_t *)&out) ){
            fprintf(stderr,"Iconv Eoor: %s\n",strerror(errno));
            exit(-1);
        }        if( mysql_real_query(&mysql,outbuf,out) ){
            fprintf(stderr,"Error making query: %s\n",mysql_error(&mysql));
        }        if( -1 == iconv_close(cd) ){
            fprintf(stderr,"Iconv_close Error: %s\n",strerror(errno));
            exit(-1);
        }
    }    fclose(fp);
    mysql_close(&mysql);    exit(0);
}
[/code]上面代码中iconv部分我不知道怎么写,如果去掉那部分,程序可以运行,但插在zy数据库中的汉字部分全是乱码:cry:cry:cry

Answer 1

我又改了一下,加了character and set names在程序里,这回又出现问号了  *___*    if( 0 != mysql_options(&mysql,MYSQL_SET_CHARSET_NAME,"utf8")){
        fprintf(stderr,"mysql_options Error: %s\n",mysql_error(&mysql));
        exit(-1);
    }
    if( 0 != mysql_set_character_set(&mysql,"utf8") ){
        fprintf(stderr,"mysql_set_character_set Error: %s\n",mysql_error(&mysql));
        exit(-1);
    }    /*  --------------------------------- */
    /*  021     第一分区    010021  光电感烟    一层东后区 */
    for(char buf[4096]; NULL != fgets(buf,4096,fp); ){
        /*
         * | fenqu  | char(30)
         * | bianma | int(6) unsigned zerofill
         * | liexin | char(30)
         * | weizhi | char(30)
         */
        char query[1024]="INSERT INTO zy(fenqu,bianma,liexin,weizhi) VALUES('";
        char *iter_b,*iter_e;        for(iter_b=buf; 0 < *iter_b; ++iter_b);
        for(iter_e=iter_b; 0 > *iter_e; iter_e+=2);
        strncat(query,iter_b,iter_e-iter_b);
        strcat(query,"',");
        for(iter_b=iter_e; ' '==*iter_b; ++iter_b);
        for(iter_e=iter_b; ' '!=*iter_e; ++iter_e);
        strncat(query,iter_b,iter_e-iter_b);
        strcat(query,",'");
        for(iter_b=iter_e; 0 < *iter_b; ++iter_b);
        for(iter_e=iter_b; 0 > *iter_e; iter_e+=2);
        strncat(query,iter_b,iter_e-iter_b);
        strcat(query,"','");
        for(iter_b=iter_e; 0 < *iter_b; ++iter_b);
        for(iter_e=iter_b; 0 > *iter_e; iter_e+=2);
        strncat(query,iter_b,iter_e-iter_b);
        strcat(query,"')");        /*  iconv */
        /*
        iconv_t   cd;
        char outbuf[1024];
        size_t in=strlen(query),out=1024;        if( (iconv_t)-1 == (cd = iconv_open("UTF-8","GBK")) ){
            fprintf(stderr,"Iconv_open Error: %s\n",strerror(errno));
            exit(-1);
        }
        if( (size_t)-1 == iconv(cd,(char **)&query,(size_t *)&in,(char **)&outbuf,(size_t *)&out) ){
            fprintf(stderr,"Iconv Eoor: %s\n",strerror(errno));
            exit(-1);
        }
        */        if( mysql_real_query(&mysql,query,strlen(query)) ){
            fprintf(stderr,"Error making query: %s\n",mysql_error(&mysql));
        }        /*
        if( -1 == iconv_close(cd) ){
            fprintf(stderr,"Iconv_close Error: %s\n",strerror(errno));
            exit(-1);
        }
        */
    }    fclose(fp);
    mysql_close(&mysql);    exit(0);
}

Answer 2

要用utf8字符集，连接成功后执行"set names utf8"

Answer 3

我加了这两行,依旧if( 0 != mysql_options(&mysql,MYSQL_SET_CHARSET_NAME,"utf8")){
fprintf(stderr,"mysql_options Error: %s\n",mysql_error(&mysql));
exit(-1);
}
if( 0 != mysql_set_character_set(&mysql,"utf8") ){
fprintf(stderr,"mysql_set_character_set Error: %s\n",mysql_error(&mysql));
exit(-1);
}

Answer 4

mysql默认的字符编码就是iso-8859-1
java里面这样转的
字符串.getBytes("iso-8859-1"),"要转成的字符编码")